Spindle drive mechanism



May 2S, 1935, H. z'. COBB ET AL SPINDLE DRIVE MECHANISM Filed NOV. 261932 lll lII

. ATroRNEY APatente-d May 28, 19125 I 2.002.029 srmnu: nmvr. Macmimsu Henry Z. Cobb, Providence, and Raymond S.

Francis, Romford, R. I., assignors, by menne assignments, to United States Rubber Company, New York, N. Y., a corporation oi' New Jersey Application November 26, 1932, Serial No. 844,426

Claims.

This application relates to a spindle drive mechanism, more particularly to a spindle drive mechanism for a spooling or 'winding device..

In the winding or spooling of elastic yarns 5 formed with an elastic core and a flbrous covering, more particularly with iine gauge yarns designed for knitting purposes, diillculty has been had in suitably spooling or winding the yarn prior to the knitting operation. It has been found that whenvelastic yarn's are knitted, it is essential that the yarny be supplied to the knitting machine under little or no tension. By the drive mechanisms previously used in winding or spooling such yarns,'it m been very diillcult to wind or spool the elasticyarn withoutplacing it under a va detailed speciiication and the drawing, in which latter:

Figure 1 is a vertical section partly broken j away of one form of our invention ;A and Figure 2 is a horizontal section on the line 2-2 of Fig. 1. l

Referring to the drawing, the numeral `I designates a frame upon which the windingY mechanism is mounted, and the latter comprises a hollow casing`2 provided with a flange 3 .which may1 be secured to the frame I by the screws 4. Tightly tted to the bottom of the casing and extending upwardly therein is a bearing spindle 5, which adjacent its lower portion is provided with a bearing surface 6 upon which rotates a bearing sleeve 1 which is secured by a pin or pins 8, to a rotatable hollow casng or iluid receptacle 9, the casing being provided at its upper end with any suitable form of drive means-which in the present instance is shown as a pulley I0. Projecting inwardly from the wall o f casing 9 are vertically spaced series of vertical vanes'li, to assist the frictional drag of. the wall in rotating the fluid. The casing is closed by a disc I2 heldin place by a-screw I3 passing through a second closure I4 disposed at the top of pulley I0 and secured thereto by screws I5. The upper end of the rotatable casing 9 has 'a bearing at I6 in the outer (ci. 19a-5s) casing 2, yand is provided with an oil groove IS' extending from the space between the outer casing 2 and casing 9 to a point above the bearing. Vertical movement of the casing 9 is prevented by a screw I1, the inner end of which tits within a g1oove`I1' in bearing sleevev 1. Oil may be placed in casing 2 to lubricate bearing I8 and bearing sleeve 1.

Disposed around the bearing spindle 5 andy within the rotatable casing 9 is a hollow spindle I8 provided with outwardly projecting vertically spaced series of vertical vanes I 9, which vanes it will be noted are disposed in staggered-relation to the vanes I I on the wall of casing 8. 'Ihe lower end of the hollow spindle I8 has a bearing at 20 on the spindle 5. An extension 2| of the spindle I8 projects within the upper end of the spindle I8 and is secured thereto in any suitable manner, or if desireditmay be made integral therewith. Atthe lower end of the spindle extension 2| there is provided a coned bearing recess 22 which cooperates with the coned upper end 23 of the xed bearing spindle E to form an upper bearing for the hollow spindle I8. An oil opening 24 is provided in the wall of the hollow spindle I8 adjacent the bearing '2z- 23. v

Secured to the spindle extension or. shaft 2'I is a spool driving flange 25 upon which may be disposed a spool 26 upon which is to be wound the elastic yarn or other material. The spool is frictionally held by the engagement of its ends 26 with spindle extension 2|, and by the engagement of its flange 2Gb with driving flange 25.

In operation the spaces between the outer casing 2 and rotatable casing 9 and between the latter'and the hollow spindle I8 are filled with oil or -other suitable liquid, a spool 26 placed upon the spool driving flange 25, and the pulley I0 is then driven by a belt from any suitable driving device. As the casing 9 rotates, the frictional drag of its inner Wall and the varies I.I causes the oil 21, or other liquid, to be rotated along with the casing. This rotating oil then acts upon the varies I9 to rotate the hollow spindle I8, thereby rotating' the spool 26 mounted upon the extension 2I oi the spindle to wind the elastic yarn 28 on the spool 26.

It will be seen that by the above-described mechanism, by varying the height of the oil or by using other liquids of varying viscosity, considerable variation may be made in the driving power imparted to the spindle extension 2l, so that by proper regulation of these variables, the vspool 26 may be rotated with `;1st suilicient slip to wind the elastic yarn thereon with little or no. tension.'

Itwill be obvious that when winding an elastic yarn of very tine gauge, such as those formed byl covering rubber cores oi.' 1/ 100th or 1/ 125th of an winding elastic yarn without tension, it is obvious that it is capable of other uses, for instance, for the winding of bare rubber thread and' for any other purpose where a winding or spooling operation is to be carried out without placing the lament under tension,

While a speciiic embodiment of the invention has been shown and described, it is obvious that it is capable of numerous modifications, and it is not desired to limit the invention otherwise than as set forth in the appended claim's.

Having thus described our invention, what we claim and desire to protect by Letters Patent is:

1. A drive mechanism comprising a iixed bearing spindle, a hollow driving member surrounding and having a bearing thereon, a hollow driven member surrounding and having a bearing on.

said spindle, saidmembers providing between them a space for a driving uid, and intertting fluid driving and driven elements carried by said members and disposed in said space.

2. A drive mechanism comprising a casing rotatable on a vertical axis, a drive pulley for rotating the casing, vertically spaced series of venes projecting inwardly of said casing, a fixed bearing spindle on which said casing is mounted,

aooaeaa a hollow spindle rotatably mounted on said bearing spindle, said hollow spindle having series of outwardly directed vanes disposed in staggered relation to said rst vanes, and a shaft carried by said hollow spindle. i

3. A drive mechanism comprising a iixed bearing spindle, a hollow rotatable spindle disposed `over and having a bearing on vone end of said ing spindle, a hollow rotatable spindle disposed' over and having a bearing on one end of said flxed spindle, a receptacle for driving fluid sur' rounding said hollow spindle and having a bearing on said xed spindle, means for rotating said receptacle, and projections on said hollow spindle and the wall of said receptacle vfor increasing the frictional area exposed to the driving iluid.

5. A drive mechanism comprising a xed casing having a fixed bearing spindle therein, an inner rotatable casing for a driving fluid Journaled on said xed casing and bearing spindle, means for rotating said inner casing, a hollow rotatable spindle journaled on said iixed spindle within said rotatable casing, and driving-liquid engaging means carried by said hollow spindle and rotatable casing.A f

' HENRY Z. COBB.

RAYMOND B. FRANCIS. 

